Resonating valence bond wave functions for strongly frustrated spin systems

被引：195

作者：

Capriotti, L ^{[1
]}

Becca, F

Parola, A

Sorella, S

机构：

[1] Ist Nazl Fis Mat, Unita Firenze, I-50125 Florence, Italy

[2] Univ Lausanne, Inst Phys Theor, CH-1015 Lausanne, Switzerland

[3] Univ Insubria, Ist Nazl Fis Mat, I-22100 Como, Italy

[4] Univ Insubria, Dipartimento Sci, I-22100 Como, Italy

[5] Ist Nazl Fis Mat, I-34014 Trieste, Italy

[6] SISSA, I-34014 Trieste, Italy

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.87.097201

中图分类号：

O4 [物理学];

学科分类号：

0702 [物理学];

摘要：

The resonating-valence-bond (RVB) theory for two-dimensional quantum antiferromagnets is shown to be the correct paradigm for large enough "quantum frustration." This scenario, proposed a long time ago but never confirmed by rnicroscopic calculations, is strongly supported by a new type of variational wave function, which is extremely close to the exact ground state of the J(1) - J(2) Heisenberg model for 0.4 less than or similar to J(2)/J(1) less than or similar to 0.5. This wave function is proposed to represent the generic spin-half RVB ground state in spin liquids.

引用

页码：972011 / 972014

页数：4

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